#010-0445-450-451-OPR
Revised 5/22
Operation Manual
Model 445, 451 & 450
25 & 55 gallon Automatic Preservative Applicator
Forage Harvester
2
Introduction
Congratulations on purchasing a Harvest Tec Model 445, 450 & 451 applicator. The 445, 450 & 451
applicator is designed to apply a buffered propionic acid on to the forage crop as it is being baled.
The 445, 450 & 451 applicator will adjust the rates based on the moisture and tonnage of the crop
being harvested. This manual will take you through the steps of operation of the applicator and also
point out all safety precautions that need to be made while using the applicator. Read this manual
carefully to learn how to operate the equipment correctly. Failure to do this can result in personal
injury or equipment malfunction. If you are unsure about operating the system after consulting this
manual, contact your local authorized dealership for additional assistance. If you are in need of parts
for the system please see your Installation Manual and contact your local authorized dealer to order
the parts. This applicator is designed to apply Harvest Tec buffered propionic acid.
Right and Left sides are determined by facing in the direction of forward travel.
Model reference
Baler make
Baler model
Model number
Installation kit
Tank size
Case IH
SBX530, SBX540, SBX550,
SB 531 – SB 551 square balers
445
4415B
25 gallon
John Deere
All small square balers
445
4410B
25 gallon
Massey Ferguson
124 / 128
445
4412B
25 gallon
New Holland
570, 575, 580 &
BC 5060 – BC 5080 square
balers
445
4415B
25 gallon
Case IH & New
Holland & Others
Case IH SBX 520, SB 521
New Holland 200 & 300 series,
565, BC 5050
& all others
445
4409B
25 gallon
Case IH
SBX530, SBX540, SBX550, SB
531 – SB 551 Square balers
451
4415B
55 gallon
New Holland
570, 575, 580 & BC 5060 – BC
5080 Square balers
451
4415B
55 gallon
Case IH
2001 and older small square
Balers
(two tie)
450
4485B
55 gallon
Hesston, Massey,
New Idea, &
Challenger
All small square (two tie)
450
4485B
55 gallon
Hesston, Massey,
New Idea, &
Challenger
All three tie balers
450
4502B
55 gallon
Freeman
All three tie balers
450
4506B
55 gallon
New Holland
BB 900 & 585
450
4507B
55 gallon
For AGCO part cross-reference visit: www.harvesttec.com/system.html
3
Harvest Tec 445 – 450 – 451 table of contents
PAGE
Introduction
2
Model reference
2
Safety
4-6
Safety sign locations
5
Safety sign definitions
6
Preparing the applicator for operation
7-8
Filling the tank
7-8
Model 450 & 451
7
Model 445
8
Operation of the main ball valve
8
Connecting the power harness
8
Description of screens & menus of the Harvest Tec monitor
9-14
Screen menus
10-14
Automatic mode
10
Manual mode
11
Diagnostics
12
Setup mode
13
Job records
14
First time and annual startup instructions
15
Checking and priming the pumps
15
Setting up system for initial use
16-17
Application rate
16
Selecting high and low tips
16
Baling rate
17
Operating instructions
18-21
Automatic mode
18
Manual mode
19
Job records
20
Diagnostics
21
Common questions about the 462
22
Trouble shooting checks
23-24
Backup fuse
24
Wiring diagrams
25-26
Maintenance
27-30
Maintenance schedule
27
Diagnostics
27
Filter bowl cleaning
27
Tips & tip screen cleaning
28
Tank lid cleaning
28
Dielectric grease connections
28
Rebuild pumps
28
Battery connections
28
Check valves
28
Miscellaneous maintenance
29
Winter storage
29
Parts breakdown
For AGCO part cross-reference visit: www.harvesttec.com/system.html
30-42
4
Model 445 base kit
30
Model 450 base kit
30
Model 451 base kit
31
Pump manifold
32
Star wheel sensor, bale rate sensor & hoses
33
Drain fill kit (model 450 & 451 only)
34
Control box and wiring harnesses
35
Baler specific install kits
36-42
Notes
43
Warranty statement
Back page
Safety
Carefully read all the safety signs in this manual and on the applicator before use. Keep signs clean
and in good working order. Replace missing or damaged safety signs. Replacement signs are
available from your local authorized dealer. See your installation manual for under the replacement
parts section for the correct part numbers.
Keep your applicator in proper working condition. Unauthorized modifications to the applicator may
impair the function and/or safety of the machine.
Carefully read and understand all of the baler safety signs before installing or servicing the baler.
Always use the supplied safety equipment on the baler to service the applicator.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
5
Safety sign locations
Model 450 & 451
Model 445
For AGCO part cross-reference visit: www.harvesttec.com/system.html
1
2,3,4,5
3, 5
2
1
3
2,4,5
6
Safety Signs – continued
Number 1
Spraying hazard. Disconnect power before servicing the
applicator
Part no. DCL-8003
Number 2
Falling hazard. Do not step in this area.
Part no. DCL-8002
Number 3
Use caution when working around chemicals. Wear all
protective equipment according to the label of the
product.
Part no. DCL-8001
Number 4
Read and understand the operator’s manual before using
or working around the equipment.
Part no. DCL-8000
Number 5
Open (unlocked) and closed (locked) position of the ball
valve.
Part no. DCL-8004
For AGCO part cross-reference visit: www.harvesttec.com/system.html
7
Preparing the applicator for operation
After the Applicator has been installed on the baler, follow the below steps to prepare for operating
the applicator both safely and correctly.
Filling the tank (Model 450 & 451):
Read the label of the product being filled into the tank to determine what individual protective
measures need to be taken. Locate the drain/fill line on the baler. Open the cam-couplers (A) and
remove the protective plug (B). Insert the male coupler (found on transfer pump) into the female cam
and close the cams (A). To open the ball valve (C) turn the handle so it is vertical. After the ball
valve has been turned on switch the pump to the On position. Monitor the level on the tank visually
and shut off the pump before over filling. Once the pump is turned off, close the ball valve and
remove the male coupler. The handle of the ball valve (C) will be horizontal when closed. Reinstall
the protective plug and close the cams. The Harvest Tec model 9212 transfer pump is
recommended for this process.
Water is recommended for first time and annual start up procedures.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
Drain/Fill line on the baler
A
A
B
C
Enlarged view of the drain/fill line
valve and cam-coupler assembly.
8
Filling the tank (Model 445):
Read the label of the product being filled into the tank to determine what individual protective
measures need to be taken. Clean the tank lid area and unscrew the lid. Transfer product from the
container into the tank.
Water is recommended for first time and annual start up procedures.
Operation of the main ball valve
The ball valve should be closed at all times when the applicator is not being used. The valve should
also be closed when any service work is being done to the baler or applicator.
The valve is located next to the pump and by the applicator tank. The arrow below points at the
valve.
Valve open
Valve closed
Connecting the power harness
The power harness that supplies power from the tractor battery to the applicator pump has a
disconnect at the hitch. Connect the two together for operation. Always disconnect before servicing
the applicator or baler.
WARNING: Stop tractor engine and shift to park or neutral, set brakes and remove key before
leaving the tractor.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
9
Description of Screens & menus of the Harvest Tec monitor
This system is calibrated for use with Harvest Tec buffered propionic acid. The use of other
products can cause application problems and damage to system components. It is designed to
apply rates of 16 to 300 pounds of acid per hour and read moisture levels of 10 to 32 percent.
The 462 monitor will allow you to set your bale weight, single bale formation time, moisture levels
and application rates. The Automatic Mode option will automatically adjust the application rates
as the moisture level changes. Manual Mode will allow you to control the application rates on the
go. To turn the display on, press anywhere on the right side of the screen followed by pushing the
“Press to Start” key.
AUTOMATIC MODE This mode allows you to use all of the applicators features such as adjusting
preservative application on the go and counting total pounds of product used.
MANUAL MODE Allows operator to manually turn pumps on and off. This mode also has moisture
content displayed. Use this mode to prime pumps.
SETUP MODE This mode allows the operator to adjust bale rate and application rate settings and view
or change tip selection.
DIAGNOSTICS Allows operator to automatically check performance and output of pumps as well as
set the date and time.
JOB RECORDS Keeps track of up to 63 jobs with total product used, average moisture content, tons
baled, and date of baling.
POWER OFF This key turns the unit off. Press anywhere on the right side of the screen to turn the
unit on.
CONTRAST This button is your contrast control. Press this button to lighten the screen.
When the screen reaches its lightest point, pressing again will return to the darkest setting.
Fine tuning the contrast can be accomplished by turning the knob on the bottom right side
of the enclosure.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
0
Main Menu Screen
10
Screen Menus
Use the below listed screen menus to navigate through all of the operation screens.
Automatic Mode:
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11
Manual Mode:
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12
Diagnostics:
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13
Setup Mode:
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14
Job Records:
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15
First time and annual startup instructions
After installation the unit must be checked out before field operation.
Checking and priming the pumps
1. Put 10 gal of water in tank and turn main ball valve on.
2. Inspect for any leaks or drips at this time. If any are found tighten or replace area or fitting.
3. Turn controller on (push anywhere on the screen) followed by pushing the “Press to Start” key.
4. Press the SETUP MODE key. (See page 17) Select Sensors are: OFF to disable bale rate sensors.
Make sure the AVG Bale Weight is 100 lbs and the AVG Baler Length is 36 in and EST Baling Time is
10 sec. Press the MAIN MENU key to return to the opening screen.
5. Press the MANUAL MODE key.
6. The screen shown below should appear.
7. For Conventional Square balers: Turn pump 1 on (P1). To do this press the underlined area on the
screen which says OFF. The application rate should then read between 1.2 – 1.6 Lbs/Ton. Ideally, at
13.5 volts, the rate would read 1.4 Lbs/Ton.
8. Repeat the process for pumps 2 and 3 (P2 and P3). The application rate should read between 3.6 –
5.0 Lbs/Ton and 6.7 – 9.3 Lbs/Ton respectively. Ideally, at 13.5 volts, the rate for pump 2 would be 4.3
Lbs/Ton and pump 3 would be 8.0 Lbs/Ton.
9. For Three Tie: Turn pump 1 on (P1). To do this press the underlined area on the screen which says
OFF. The application rate should then read between 1.8 – 2.6 Lbs/Ton. Ideally, at 13.5 volts, the rate
would read 2.2 Lbs/Ton.
10. Repeat the process for pumps 2 and 3 (P2 and P3). The application rate should read between 3.6 –
5.0 Lbs/Ton and 9.7 – 13.4 Lbs/Ton respectively. Ideally, at 13.5 volts, the rate for pump 2 would be
4.3 Lbs/Ton and pump 3 would be 11.4 Lbs/Ton.
11. This process will also be used to prime the pumps whenever needed.
12. While running pumps check for a good spray pattern out of the respective tips and verify that no parts
of the system are leaking.
13. While doing these tests the Volume Used on the bottom of the screen should be counting up, this
verifies that the flow meter is functioning.
14. In order to check moisture reading, have an assistant grab the star wheels. The moisture should read
between 17-25 percent depending on how moist their hands are.
15. This button is your contrast control. Press this button to lighten the screen. When the screen reaches
its lightest point, pressing again will return to the darkest setting.
16. Press the MAIN MENU key to return to the initial start up screen.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
6, 8
12
13
15
14
8.0
16
Setting up system for initial use
In this mode you will setup your initial application rate and baling rate
Application rate
After pushing the SETUP MODE key in the Main Menu screen, the top screen should appear:
1. On this screen the operator will press the APPLICATION RATE key. Once pressed the SETUP
APPLCATION RATE screen will be shown. (bottom left picture)
2. Press any of the underlined numbers to the right of %MC to adjust their figures. The key pad shown on
the bottom right will display. Remember level 1 must be lower than level 2 and level 2 must be lower
than level 3. Harvest Tec products recommend set points of 16, 22, and 26 % MC levels. These are
preset from the factory. Press ENTER to return to previous screen.
3. To change rate of chemical application press any of the underlined numbers to the right of the RATE:.
The key pad shown on the bottom right will display. Remember level 1 must be lower than level 2 and
level 2 must be lower than level 3. Harvest Tec products recommend rates of 4,8, and 16 lbs/ton (2, 4,
and 8 litres/tonne). These rates are preset from the factory. Press ENTER to return to previous screen.
IT IS THE OPERATORS RESPONSIBILITY TO FOLLOW THE RECOMMENDATIONS OF THE
PRESERVATIVE. ONLY THE OPERATOR CAN APPLY THE PROPER RATE.
4. To set the alarm press on the underlined area. Set the level at which you want the alarm to activate.
To turn the alarm off, set level above 35.
5. The TIP OUTPUT should always read LOW for small square balers; only use HIGH for three tie balers.
The TIP OUTPUT key allows the operator to select between high and low outputs.
6. Press the OPTION key to adjust the touchscreen between metric and standard units.
7. Next press the BACK key found on the bottom left hand of the screen to return to the previous screen
or press MAIN MENU key on the bottom right hand of the screen to return to the opening screen.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
1
3
4
5
7
2
6
17
Baling rate
After pushing the SETUP MODE key in the Main Menu screen, the top screen should appear:
1. On this screen the operator will press the BALING RATE key. This screen is shown on the bottom left
picture shown above.
2. Press the underlined number to the right of AVG Bale Weight (Lbs): to adjust the weight of your bales.
The key pad shown on the right side will display. Press any number combination in this screen within
the min/max limits. Press the ENTER key to save this information. The information will remain until it is
changed again.
3. Press the underlined number to the right of AVG Bale Length (In): to adjust the length of your bales.
The key pad shown on the right side will display. Press any number combination in this screen within
the min/max limits. Press the ENTER key to save this information. The information will remain until it is
changed again.
4. Press the underlined number to the right of EST Baling Time (Sec): to adjust the time it takes to make a
bale. The key pad shown on the right side will display. Press any number combination in this screen
within the min/max limits. Press the ENTER key to save this information. The information will remain
until it is changed again.
5. If the unit will be run with the bale sensors on, then the bale weight and length will need to be inputed.
When the sensors are: on, the applicator will calculate your tons per hour. When the Sensors are: off
(as shown above), a constant tons per hour ( your inputed bale weight and time) will be used. Press
the underlined word to toggle between on or off.
6. Next press the BACK key found on the bottom left hand of the screen to return to the Setup Mode
screen, or press the MAIN MENU key on the bottom right hand of the screen to return to the opening
screen.
7. Press the OPTION key to adjust the touchscreen between metric and standard units and languages.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
1
6
7
2
3
4
5
18
Operating instructions
Auto mode will automatically apply product based on both hay moisture content sensed by the star
wheels and the operator’s presets. (See “Setting up system for initial use” to change any of these
settings). Manual mode will apply preservative to the hay at a fixed rate regardless of the
moisture content.
Automatic Mode
After pushing the AUTOMATIC MODE key in the Main Menu screen, the following screen should
appear:
1. Push the START/STOP key to pause the unit while in operation.
2. Push the OVERRIDE key to turn on all three pumps at the same time for full output of the
system. Use this mode when going through a short area of wet crop.
3. The moisture content is shown in the upper right hand corner.
4. Baling Rate and Application Rate are shown in the middle. The operator sets the target
application rate in the setup mode; the actual rate should be within +/- one pound (litre) when
running. The baling rate is also set in Setup Mode.
5. Volume used shown at the bottom of the screen will show accumulated pounds (litres) of
preservative used on the go. This number will reset at power down, but remains in the job
record screen. NOTE: Initial start-up requires pressing the New Job key in the Job
Records screen in order for Volume Used accumulation to be recorded. This only
needs to be done once on initial start-up of system and not every time the system is
started for operation. (See JOB RECORDS screen)
6. The graph shows the moisture trend from the past 90 seconds in 3 second intervals.
7. This button is your contrast control. Press this button to lighten the screen. When the screen
reaches its lightest point, pressing again will return to the darkest setting.
8. Press the MAIN MENU key to return to the opening screen.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
1
2
3
4
5
6
8
7
19
Manual mode
After pushing the MANUAL MODE key in the Main Menu screen, the following screen should appear:
1. Push the START/STOP key to pause the system while in operation.
2. Push the OVERRIDE key to turn on all three pumps at the same time for full output of the system. Use this mode
when going through a short area of wet crop.
3. In Manual Mode you can turn the pumps on or off by pressing the underlined area next to the pump numbers. In
Manual Mode (regardless of baling rate, moisture, or bale weight) the outputs of the pumps are fixed rates as
follows:
Pump outputs for Three Tie (High):
Conventional Square (Low):
Pump 1 = 40 LBS/HR
Pump 1 = 25 LBS/HR
Pump 2 = 75 LBS/HR
Pump 2 = 75 LBS/HR
Pump 3 = 205 LBS/HR
Pump 3 = 145 LBS/HR
4. The moisture content is shown in the upper right hand corner.
5. Baling rate and Application rate are shown in the middle. The output of a pump can be checked by dividing the
preset output (shown in step 3, above) by the displayed baling rate. For example, if you are running pump three,
by itself for conventional square, your output is 145 lbs/hr. Given the baling rate shown on the above screen of 18
tons/hr, the application rate should be about 8.0 lbs/ton (145 lbs/hr divided by 18 tons/hr).
6. Volume used shown at the bottom of the screen will show accumulated pounds of preservative used on the go.
This number will reset at power down, but remains in the job record screen. NOTE: Initial start-up requires
pressing the New Job key in the Job Records screen in order for Volume Used accumulation to be
recorded. This only needs to be done once on initial start-up of system and not every time the system is
started for operation. (See JOB RECORDS on the following page)
7. The baling rate is set in the Setup Mode menu.
8. The graph shows the moisture trend from the past 90 seconds of baling time (one reading every three seconds).
9. This button is your contrast control. Press this button to lighten the screen. When the screen reaches its lightest
point, pressing again will return to the darkest setting.
10. Press the Main Menu key to return to the opening screen.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
1
2
3
4
5
6
7
8
10
9
8.0
20
Job records
After pushing the JOB RECORDS key in the Main Menu screen, the following screen should appear:
1. The job number will be displayed in the top left corner and will move to the next job when the
NEW JOB key is pressed. The current job being viewed will always read "Job #: 0". Product
used and average moisture content will be reset when the NEW JOB key is pressed. The job
records screen will store up to 63 jobs and will allow you to access previous jobs by using the
up and down arrows found on the right side of the screen.
2. Scrolling through previous jobs is done by pressing the UP or Down keys.
3. Every time the NEW JOB key is pressed the accumulated pounds on auto and manual
modes will be reset to zero. After 63 jobs have been stored, the next time the NEW JOB key
is pressed the system will start over with job one and the old job will be replaced.
4. Highest moisture content will display moistures up to 33%. Any moisture recorded higher than
33 % will register only as 99%.
5. To return the opening screen, press the MAIN MENU key.
NOTE: Initial start-up requires pressing the New Job key in the Job Records screen in
order for Volume Used accumulation to be recorded. This only needs to be done once
on initial start-up of system and not every time the system is started for operation.
For AGCO part cross-reference visit: www.harvesttec.com/system.html
1
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